JPH0427491Y2 - - Google Patents

Description

[Detailed Description of the Invention] (Industrial Application Field) The present invention relates to a vacuum cleaner, and particularly to an air path between an electric blower and a dust collection chamber within the vacuum cleaner body.

(Prior Art) Conventionally, as described in, for example, Japanese Unexamined Patent Application Publication No. 51-45462 or Japanese Utility Model Application No. 51-79163, a vacuum cleaner main body has a dust collection chamber for collecting dust formed in the front side of the interior. A vacuum cleaner is known in which an electric blower is installed on the rear side of the inside of the vacuum cleaner with its rotation axis vertical. In this way, a vacuum cleaner with an electric blower installed with its axis of rotation vertically has the advantage of being able to lower the height of the vacuum cleaner body, lowering the center of gravity, and increasing stability. Since the fan side is formed with a larger diameter on the opposite side, the fan side is placed with the fan side facing downward. And in this kind of vacuum cleaner,
Air flows in through the suction port opened at the lower front of the vacuum cleaner body, passes through the dust collection chamber, is bent by approximately 90 degrees just below the fan, and passes through the electric blower.
The vacuum cleaner is designed to be discharged outside the main body.

By the way, electric blowers generally have a structure in which the fan side and the opposite side of the fan side are supported by vibration isolators, but as mentioned above, with a vacuum cleaner whose rotating shaft is vertical, the cleaning In the vacuum cleaner described in Japanese Patent Application Laid-open No. 51-45462, the vacuum cleaner body is A structure in which an air passage is formed by creating a gap between the inner bottom surface of the lower case and the support that is vertically installed on the upper case of the case that makes up the outer shell and supports the fan-side vibration isolator from its lower surface and outer peripheral surface. was taken. However, in this structure, the support body has to be molded separately from the upper case due to mold cutting, which makes the structure complicated and cannot be made at low cost.

On the other hand, in the vacuum cleaner described in the above-mentioned Japanese Utility Model Publication No. 51-79163, a plurality of stepped portions are formed on the lower surface of the lower case and project into the lower case to support the vibration isolator on the fan side from below. , a structure was adopted in which air passages were formed by gaps between these steps.
However, even with this structure, the shape of the lower case constituting the main body of the vacuum cleaner becomes complicated, and the vacuum cleaner cannot be manufactured at low cost.

Furthermore, in any of the above conventional structures, there is a support hanging down from the upper case or a stepped portion of the lower case near the approximately 90° bend in the airflow, and these supports and the lower case are made of rigid materials. Due to the weather, the wind noise increased and the noise level increased.

(Problem that the invention aims to solve) As mentioned above, in a vacuum cleaner with a conventional structure in which the dust collection chamber is located perpendicular to the rotation axis of the electric blower, there is a almost 90°
The curved air passage is formed by a support that is formed separately from the case that forms the outer shell of the vacuum cleaner body and supports the vibration isolator, or by a step that is formed in the case and supports the vibration isolator. As a result, the structure became complicated and the noise became louder.

The present invention is an attempt to solve such problems, and includes a vacuum cleaner in which a dust collection chamber is formed perpendicular to the rotation axis of an electric blower.
To provide a vacuum cleaner that simplifies the support structure and air passage forming structure of an electric blower and reduces noise.

(Means for solving the problem) The vacuum cleaner of the present invention includes an electric blower consisting of a motor and a fan rotationally driven by the motor, and a built-in electric blower that is perpendicular to the rotation axis of the electric blower. A vacuum cleaner body in which a dust collection chamber is partitioned through a partition wall having an inlet at a forward position, and a fan side and a side opposite to the fan side of the electric blower are interposed between the vacuum cleaner body and the electric blower, respectively. a pair of vibration isolators that hold the fan side of the electric blower by positioning the air passage bent at a substantially right angle from the dust collection chamber to the fan of the electric blower at a lower part of the vacuum cleaner main body; The vibration isolator has a protrusion forming an air path that engages with an inlet formed in the partition of the vacuum cleaner main body.

(Function) In the vacuum cleaner of the present invention, the vibration isolator that holds the electric blower forms an air path bent at approximately 90° between the dust collection chamber and the fan of the electric blower. By following the vibration isolator at the bend, wind noise is less likely to occur and the noise level is reduced. In addition, the protrusion that forms the air path of the vibration isolator is engaged with the inlet formed in the bulkhead of the vacuum cleaner body, which prevents the vibration isolator from shifting relative to the vacuum cleaner body. The air passage formed by this is held in place.

(Embodiment) Hereinafter, the configuration of an embodiment of the vacuum cleaner of the present invention will be described based on FIGS. 1 and 2.

Reference numeral 1 denotes a vacuum cleaner body, and this vacuum cleaner body 1 includes a lower case 2 with an open top surface and this lower case 2.
The main body case 4 consists of an upper case 3 which is connected and fixed to the rear upper side of the main body case 4 and has an open bottom surface, and a lid body 5 which freely closes the opening on the front upper side of the main body case 4.

Further, the lid body 5 is airtightly abutted on the peripheral edge of the opening at the upper front part of the main body case 4.
A packing 6 is provided. The lid body 5 has locked parts 7 and 8 formed at the front and rear parts of the lid body 5 connected to locking parts 9 and 10 formed at the first packing 6 and the upper case 3. They are removably engaged with each other and are removably attached to the main body case 4. Note that the lid 5 may be pivoted to the main body case 4 so as to be openable and closable.

In addition, inside this main body case 4, a rotating brush chamber 13, a dust collection chamber 14, and an electric blower chamber 15 are partitioned from the front side to the rear side by a first partition wall 11 and a second partition wall 12 arranged in front and back. It is formed. moreover,
The first partition wall 11 and the second partition wall 12 have a first inlet 16 that communicates the rotating brush chamber 13 and the dust collection chamber 14 with each other, and a first inlet 16 that communicates the dust collection chamber 14 and the electric blower chamber 15 with each other. A second inlet 17 is formed at the bottom, and a second inlet 17 is formed at the bottom.
A second packing 18 is provided around the periphery of the suction port 16.
is provided.

A suction port 21 is formed in the lower surface of the main body case 4 facing the rotating brush chamber 13, and a rotating brush 22 is rotatably supported within the rotating brush chamber 13. Further, a motor 23 for rotationally driving this rotating brush 22 is disposed at the rear of the main body case 4, and a pulley 24 fixed to the rotating shaft of this motor 23 and a pulley 25 fixed to the rotating brush 22 are arranged. A belt 26 for transmitting rotation is stretched around the belt 26 .

Furthermore, a paper dust collection bag 27 is removably installed in the dust collection chamber 14, and is replaced through an opening for disposing of dust on the upper front part of the main body case 4. The dust collection bag 27 is composed of a bag-like filter material 28 and a mouth frame 29, and the second packing 18 is airtightly abutted around the opening of the mouth frame 29. Further, an auxiliary dust collecting filter 30 is installed to cover the second inlet 17 from the dust collecting chamber 14 side.
is provided.

31 is an electric blower, and this electric blower 31 is
It is composed of a motor 32 and a fan 34 fixed to a rotating shaft 33 protruding downward from the motor 32, and a cover body 35 that covers this fan 34.
The cover body 35 has a diameter larger than that of the motor 32, and has an intake port 36 in the center.

The electric blower 31 has its rotating shaft 3
3 is arranged vertically in the electric blower chamber 15 with the fan 34 side facing downward, and the first A second vibration isolator 39 made of a soft member is elastically held on the side opposite to the fan 34 by a vibration isolator 38, and is airtightly fitted in the lower part of the electric blower chamber 15 of the lower case 2. The fan 34 side is elastically held. That is, this second vibration isolator 39 is
As shown in FIG. 2, it is formed in a cylindrical shape with the vertical direction as the axial direction, and an enlarged diameter part 40 is formed on the upper side of the inside, and the cover body 35 of the electric blower 31 is attached to this enlarged diameter part 40. are hermetically fitted.

A communication hole 41 is formed on the lower side of the front peripheral surface of the second vibration isolator 39, and
A protrusion 42 that surrounds this communication hole 41 and forms an air passage 43 is formed to protrude forward.
is airtightly fitted into the second inlet 17 of the second partition wall 12 . The space between the communication hole 41, the inside of the second vibration isolator 39, and the inner bottom surface of the lower case 2 is bent at an almost right angle from the rear of the dust collection chamber 14 to the fan 34 of the electric blower 31. It has become a wind path 43.

Further, the second vibration isolator 3 of the electric blower room 15
An exhaust port (not shown) is formed in the main body case 4 facing the upper part of the main body case 9 .

Further, at the rear end of the main body case 4, a pair of left and right wheels 46 are provided on the lower side, and a handle 47 is provided on the upper side.

Next, the operation of the above embodiment will be explained. During cleaning, a rotating brush 22 driven by a motor 23 scrapes dust from a carpet or the like. Air flow is generated by the rotation of the fan 34 driven by the motor 32, but the air and dust sucked into the suction port 21 are guided to the dust collection chamber 14 via the rotating brush chamber 22, and the dust is collected. bag 27
The dust collection bag 2 is filtered through the filter material 28 of
Dust is accumulated in the fan 34, and only air flows through the fan 34.
After being bent by approximately 90 degrees in the air passage 43 below, it passes through the electric blower 31 and is discharged to the outside of the vacuum cleaner body 1.

At this time, especially in the air passage 43 where the airflow bends approximately 90 degrees, the air flows along the second vibration isolator 39 made of a soft material, so wind noise is less likely to occur, and the second vibration isolator The body 39 absorbs and insulates sound, reducing the noise level.

Further, since the protrusion 42 of the second vibration isolator 39 is fitted into the second inlet 17 of the second partition wall 12 of the cleaner main body 1, the second vibration isolator 39 is In addition to being prevented from rotating, vertical movement is also restricted, and even when subjected to vibrations from the electric blower 31, etc.
No positional deviation occurs. Therefore, the second
The air passage 43 formed by the vibration isolator 39 also does not shift from its predetermined position.

According to the above configuration, since the air passage 43 bent at a substantially right angle is formed by the vibration isolator 39, the case 2 and the vibration isolator 39, which constitute the outer shell of the cleaner body 1, are not included in order to form the air passage 43. In addition, the shape of the lower case 2 can be particularly simplified. Therefore, the structure becomes simple and can be made at low cost.

Further, the shape of the air passage 43 is not affected by the cutting process during molding of the case 2, so it can be set relatively freely.

Furthermore, since the protrusion 42 of the second vibration isolator 39 forming the air passage 43 is fitted into the second inlet 17 formed in the second partition wall 12 of the cleaner main body 1, other By using the functional part, it is possible to prevent the second vibration isolator 39 from shifting as described above, resulting in an efficient configuration.

Further, the dust collection bag 27 is not necessarily necessary, and a structure may be adopted in which dust is directly stored in the dust collection chamber 14.

Next, another embodiment of the present invention will be described based on FIG.

In this embodiment, the surface facing the second inlet 17 is formed by the second vibration isolator 39 and is a smooth curved surface 51 having the center of curvature on the fan 34 side. This curved surface 51 allows the air flow in the air path 43 to flow smoothly through the fan 34.
The noise level is further reduced.

Furthermore, FIG. 4 shows a third embodiment of the present invention, in which the lower surface 52 of the almost vertically bent air passage 43 below the fan 34 is also formed by the second vibration isolator 39. ing.

According to this structure, all of the airflow in the air passage 43 follows the second vibration isolator 39 made of a soft member, so that the noise level is further reduced.

(Effects of the invention) According to the invention, the air path bent at an almost right angle from the dust collection chamber to the fan of the electric blower is formed by a vibration isolator, that is, a soft member that holds the electric blower, so wind noise is generated. This reduces the noise level, allows the shape of the air path to be set relatively freely, and does not require a separate member from the vacuum cleaner body and the vibration isolator to form the air path. The shape of the vacuum cleaner body is not complicated, so the structure can be simplified and the cost can be reduced. moreover,
The protrusion that forms the air path of the vibration isolator is engaged with the inlet formed in the partition wall between the vibration isolator and the dust collection chamber, preventing the vibration isolator from shifting, ensuring that the air path is held in place. Moreover, since the projections forming the air passages of the vibration isolator are prevented from shifting, the structure is not complicated.

[Brief explanation of drawings]

Fig. 1 is a cross-sectional view showing one embodiment of the vacuum cleaner of the present invention, Fig. 2 is a perspective view of the vibration isolator on the fan side of the same, and Fig. 3 is a cross-section of the rear part showing another embodiment of the present invention. 4 are rear sectional views showing still another embodiment of the present invention. 1... Vacuum cleaner body, 12... Partition wall, 14... Dust collection chamber, 17... Inlet, 31... Electric blower, 3
2... Motor, 33... Rotating shaft, 34... Fan, 38... First vibration isolator which is the vibration isolator on the side opposite to the fan side, 39... Second vibration isolator which is the vibration isolator on the fan side. vibration isolator, 42... protrusion, 43... air path.

Claims (1)

[Scope of Claim for Utility Model Registration] An electric blower consisting of a motor and a fan rotationally driven by the motor, and a partition wall containing the electric blower and having an inlet at a front position perpendicular to the rotation axis of the electric blower. A vacuum cleaner body with a dust collection chamber defined therebetween, and a pair of vibration isolators interposed between the vacuum cleaner body and the electric blower and holding a fan side and a side opposite to the fan side of the electric blower, respectively. , an air path bent at a substantially right angle from the dust collection chamber to the fan of the electric blower is formed by a vibration isolator located at a lower part of the vacuum cleaner body and holding the fan side, the vibration isolator A vacuum cleaner characterized in that a protrusion forming an air passage is engaged with an inlet formed in a partition of the vacuum cleaner main body.